2010 Volvo S40 Owner's Manual - Page 221

09 Maintenance and servicing Fluids WARNING Never remove the radiator cap while the engine is warm. Wait until the vehicle cools. If it is necessary to top off the coolant when the engine is warm, unscrew the expansion tank cap slowly so that the overpressure dissipates. 09 (280 °C), P/N 9437433 Replace: The fluid should be replaced according to the intervals specified in the Warranty and Service Records Information booklet. When driving under extremely hard conditions (mountain driving, etc), it may be necessary to replace the fluid more often. Consult your Volvo retailer. Always entrust brake fluid changing to a trained and qualified Volvo service technician. Power steering fluid The fluid level is checked at each service interval. Fluid type: Volvo power steering fluid or equivalent. Replace: No fluid change required. WARNING If a problem should occur in the power steering system or if the vehicle has no electrical current and must be towed, it is still possible to steer the vehicle. However, keep in mind that greater effort will be required to turn the steering wheel. Brake fluid WARNING • If the fluid level is below the MIN mark in the reservoir or if a brake-related message is shown in the information display: DO NOT DRIVE. Have the car towed to a trained and qualified Volvo service technician and have the brake system inspected. Dot 4+ should never be mixed with any other type of brake fluid. • G020333 Brake fluid reservoir The brake fluid should always be between the MIN and MAX marks on the side of the reservoir. Check, without removing the cap, that there is sufficient fluid in the reservoir. Fluid type: DOT 4+ boiling point >536 °F 221